If you plug in and open desktop manager, go to the update area and see if any required components are missing. If they are desktop manager will check those in and the "apply" button will be active. This will possibly fix and save you a full wipe.

Does it work properly after it goes blank? I had an issue shortly after. 1032 where once it'd gone white, only a reboot would get it to work again... Till it would go white one more time.

Turned out to be a bad OS load. A wipe (and a 300ish mb update) solved the issue.

Thanks. I was hoping a 'reload' is not needed. (Still my pet peeve with PB that as last resort, all fixes has to be re-install of OS - have never needed to do a re-install with my iPad or Xoom - PB is only one needing it ).

OK, so I tried and found the following. Change the default view of the calendar to monthly and white screen goes away. Since I prefer the weekly view, it requires another click or 2 to change to my actual preferred view - another one to add to my pet peeves with PB.